Twins?

I think that these two were happy to see me back home. They always come together in the early evening before the rest of the troop. Just looked up the collective noun for foxes as I wasn’t sure ‘troop’ was correct and apparently there is a choice:- a skulk, a leash, an earth, a troop and a lead of foxes. I’ve never heard of some of these but good to learn something new every day.